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(No Model.)

L. W. CLEVELAND. ELECTRICAL DOOR BELL PULL.

No 447,748. Patented Mar. 3,1891.

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UNITED STATES LEWIS IV. CLEVELAND, OF PORTLAND, MAINE, ASSIGNOR OFTHREE-FOURTHS TO CLARENCE L. MARSTON, LEWIS A. BARKER, AND DENNIS A.MEAIIER,

ALL OF SAME PLACE.

ELECTRICAL DOOR-BELL PULL.

S?ECIFICATION forming part of Letters Patent No. 447,748, dated March 3,1891.

Application filed December 1, 1890. Serial No. 373,207. (No model.)

To all whom it may concern.-

Be it known that I, LEWIs W. CLEVELAND, a citizen of the United States,residing at Portland, in the county of Cumberland and State of Maine,have invented certain new and useful Improvements in Electrical Door-Bell Pulls; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

Figure 1 is a perspective view of this device. Fig. 2 is a centrallongitudinal section of the device, showing the pull at rest. Fig.

5 3 is a like view, but showing the pull as in position when the bell isbeing rung.

This invention belongs to that class of devices known as electricaldoor-bell pulls, and the novelty consists in the construction andcombination of the parts in the manner and for the purposes which willhereinafter be fully set forth and claimed, reference being had to theaccompanying drawings. The chief trouble with all electric arrangementsfor door-bell pulls is that the electric points or binding-posts aremore or less exposed to the action of the weather, and when the weatheris wet or damp there is a constant leakage and wearing of the batteriesand they soon give out. The aim of the present invention is to overcomethis.

In the drawings,Arepresents any ordinary handle for a bell-pull, and Bthe escutcheon fixed to the door-frame. This escutcheon is 3 5 recessedon its face at b about the central opening I) through it to afford aseat for the end of the shank C6 of the pull. On the inner face side ofthe escutcheon is fixed the 1101- low projection 12*, to which thecylinder or sleeve C is fixed at one end by screws 0. This cylinder hasinside of it the most of the operative or movable parts of the device,and is of proper length and size for that purpose.

The spindle a of the pull is located within the cylinder C, and isadapted to be moved back and forth therein through the projection Z2 andthe opening I) in the escutcheon. Between its end and the inner face ofthe escutcheonis placed around the spindle the 50 spiral spring D, bymeans of which the handle is automatically returned to position and keptnormally against the escutcheon, as shown in Fig. 2. When the pull isdrawn out, as in Fig. 3, to ring the bell, the metal spindle E, whichisbeyond but in alignment with the pull-spindle a, is forced inward bythe spiral spring F about it, fixed between its headed end eand thehard-rubber piece G, which is fastened by any suitable means in theouter end of the cylinder or sleeve C, leaving a portion of it beyondthe cylinder. This movement of the spindle E brings its metallic head ein contact with the binding-posts H H, fixed in said hard rubber andcompletes the electric circuit between the wires I I. I/Vhen theconnection is made the spindle E is completely insulated. This device isvery simple in its structure and prevents any leakage of the batteries,the

hard rubber that carries the binding-posts being placed beyond theaccess of dampness or the effect of the weather. Its parts are veryeasily reached for repairs. \Vhile it is not broadly new to makeconnectionsof the electric circuit by means of a pull-spindle having aspring about it, yet in my device the hard rubber is permanently andsecurely fixed, and the binding-posts are in like manner secured andfirmly fixed in position therein. The circuit is made by direct contactwith the said binding-posts of an independent and spring-actuated pieceof metal, and best of all, when the electric circuit is complete thereis no danger of its being interrupted by reason of contact with anyother parts, since the means that effect the closure of the circuit arethemselves insulated in fact.

Having thus described my invention, I claim 1. In an electricaldoor-bell pull, the combination of the handle and spring about itsspindle, whereby it is normally held in place, with a secondspring-actuated spindle and the insulating material through which saidspindle is movable, and the binding-posts in 95 said material, wherebywhen the handle and its spindle are drawn out said second spindle isinsulated by its spring action and makes connection between saidbinding-posts, substantially as described.

In combination with a door-cscutchcon and a metal cylinder C, fixedthereto at one end, the handle A and its spindle and the spring about itinside said cylinder, and the hard rubber G, fixed in the opposite endof the cylinder and projecting beyond said cylinder, and thebinding-posts and spring-actuated and headed spindle E, substantially asand for the purposes set forth.

3. In an electric door-bell pull, the combination of the spring-actuatedhandle and the insulating material and binding-posts therein with thesecond spring-actuated spindle in alignment with the first spindle,movable through said insulating material, and all in the manner and forthe purposes described.

4. In an electric door-bell pull, substantially as described, thecombination of the door-cscutcheon and sleeves or cylinder at tachedthereto, the hard-rubber or insulating malerial secured in and to theouter end of said sleeve or cylinder, and the bindingposts secured tosaid material, and the headed and spring-actuated metal spindle movablewithin said sleeve or cylinder and also through said insulatingmaterial, and the handle and its connections normally holding saidheaded spindle out of contact with the binding-posts, substantially asand for the purposes set forth. In testimony whereof I affix mysig'nature in presence of two Witnesses.

LElVIS V. CLEVELAND.

\Vitnesses:

D. O. O. ODoNoeHUE, HENRY J. CONLEY.

